State Lean
Strong Democratic
Not a core swing state
General Election
Voters choose the office holder.
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Total volume
$311
24h volume
$0
source: Kalshi
Structural race context from reviewed jurisdiction data
Colorado · US Senate
State Lean
Strong Democratic
Not a core swing state
Primary System
Party primary or state-specific
No primary runoff
Election Rules
Primary Jun 30, 2026
Runoff: No
General: Nov 3, 2026
Early voting
Colorado uses all-mail voting; in-person vote centers generally open 15 days before Election Day through Election Day.
Sources reviewed May 2, 2026 · NCSL · Vote.org · Manual editorial review
Important voting dates, registration deadlines and prediction market closing times.
November
FRI 10
Prediction market closes
Recent reporting and announcements directly related to this race and its candidates.
Recent news is centered on other Senate races, especially Michigan. Abdul El-Sayed won the Democratic nomination there and later drew viral attention after a televised exchange spread online. The Colorado Senate party market does not appear to have any direct new development in these reports. These updates are about other states, so they do not appear to move the Colorado Senate party market directly. Any effect on Colorado odds looks minimal or unclear.
With just hours left for casting votes, here is a look at polling and prediction markets in Colorado.
Curtis Hertel announced the decision just over an hour after Stevens released an endorsement video for Michigan’s GOP Senate nominee, Mike Rogers.
Senate Minority Leader Chuck Schumer had endorsed Stevens in the heated Democratic primary for the coveted Senate seat.
Donald Trump has canceled a planned rally in Kansas as polls shows GOP Sen. Roger Marshall trailing his Democratic challenger.
Hegseth "needs to go," Republican Senator Thom Tillis recently told reporters when probed on impeachment speculation.
Abdul El-Sayed won Michigan’s Democratic Senate primary over Rep. Haley Stevens, establishing a Midwest beachhead for the progressive left.
House Democrats appear to be flirting with one of the biggest popular vote wins in decades. Follow these races on election night to know how well Democrats are doing.
Here's exactly what readers can expect to see from The Denver Post on Election Day: Live Colorado election results, political analysis and more.
U.S. Sen. John Hickenlooper faced conservative state Sen. Mark Baisley Wednesday night in their second debate in Colorado's Senate race ahead of the November election.
Democratic incumbents were rocked by a wave of upsets from far-left challengers as their primary voters indicated that "socialism" isn't necessarily a dirty word for them.
These are market contract results, not election calls or vote totals. News, polls, prices and charts remain as captured.
Observation saved Nov 4, 2026, 11:35 AM UTC. No automatic updates.
No verified final result is available for this race.
Democratic party
Will Democratics win the Senate race in Colorado?
Settlement pending
Republican party
Will Republicans win the Senate race in Colorado?
Settlement pending